The housing of the projector and the projector

Abstract

The present invention discloses a housing of a projector and a projector. The housing of the projector includes: a first housing for installing an optical component and a main control board of the projector, and the first housing has a first connection end and a first free end that are oppositely arranged; two second housings respectively for installing an audio component of the projector, and the second housing has a second connection end and a second free end that are oppositely arranged. The second connection end of the second housing is rotatably connected to the first connection end of the first housing; a driving component for driving the two second connection ends to rotate relative to the first connection end, so that the two second housings rotate relative to the first housing to unfold or gather. With such a setting, it is convenient for the housing of the projector to unfold and gather, and thus it is convenient for the storage and use of the projector.

Description

Technical Field

[0001] The present invention relates to the technical field of projection equipment, and in particular to a shell of a projector and a projector. Background Art

[0002] A projector, also known as a projector, is a device that can project images or videos onto a screen. It can be connected to computers, VCDs, DVDs, BDs, game consoles, DVs, etc. through different interfaces to play corresponding video signals.

[0003] Existing projectors usually integrate a main control board, optical components, and audio components into a housing of the projector, which makes the projector bulky as a whole and inconvenient to install and store. Summary of the invention

[0004] The main purpose of the present invention is to provide a shell of a projector, which is intended to facilitate the unfolding and gathering of the shell of the projector, and further facilitate the storage of the shell of the projector.

[0005] To achieve the above object, the present invention provides a housing of a projector, which comprises:

[0006] A first housing, used for mounting the optical components and the main control board of the projector, wherein the first housing has a first connecting end and a first free end which are arranged opposite to each other;

[0007] There are two second shells, each for mounting the audio component of the projector, the second shells having a second connecting end and a second free end which are oppositely arranged, and the second connecting end of the second shell is rotatably connected to the first connecting end of the first shell;

[0008] The driving assembly is used to drive the two second connection ends to rotate relative to the first connection end, so that the two second shells rotate relative to the first shell to expand or gather.

[0009] In one embodiment of the present invention, a recessed groove is provided on the end surface of the first connecting end, and the recessed groove has two first side walls and two second side walls which are arranged opposite to each other, and the two first side walls are both penetrated, and one of the two second side walls is recessed with two recessed holes which are arranged at intervals in the direction in which the two first side walls are approaching or moving away from each other; the second connecting section is provided with a protruding connecting plate, and the connecting plate is movably installed in the recessed groove and located between the two second side walls, and the connecting plate is also penetrated with a mounting hole; the housing of the projector also includes two rotating shafts, one end of the two rotating shafts are respectively rotatably installed in the first shell, and the other ends of the two rotating shafts respectively pass through the corresponding recessed holes and are fixedly connected to the corresponding mounting holes on the connecting plate.

[0010] In an embodiment of the present invention, the driving assembly is installed in the first housing, and includes a driving motor, two first driving gears and two second driving gears. The output shaft of the driving motor is fixedly connected to one of the two rotating shafts. The two first driving gears are respectively installed on the two rotating shafts. The two second driving gears are rotatably installed in the first housing, the two second driving gears mesh with each other, and the two second driving gears also respectively mesh with the corresponding first driving gears.

[0011] In an embodiment of the present invention, the driving assembly further includes an installation box, which includes a bottom box, a middle box and a top box connected in sequence. The two rotating shafts respectively pass through the top box and are rotatably connected to the middle box. The driving motor is installed between the bottom box and the middle box and is connected to one of the rotating shafts. The two first driving gears and the two second driving gears are located between the middle box and the top box.

[0012] In an embodiment of the present invention, the driving assembly further includes a brake gear and a flexible brake strip. The brake gear is fixedly connected to the output shaft of the driving motor. The flexible brake strip is installed in the first housing. One end of it is fixedly connected to the first housing, and the other end thereof cooperates with the tooth groove on the brake gear to apply a restraint to the brake gear.

[0013] In an embodiment of the present invention, the second side wall is recessed with an avoidance groove. The outer shell of the projector further includes a limiting plate, which is used to cover the notch of the avoidance groove and is provided with a first arc-shaped hole penetrating along the thickness direction.

[0014] The outer shell of the projector further includes a first angle detection device, which includes a first signal transmitter, a first signal receiver and a first circuit board. The first signal transmitter is installed on the surface of the connecting plate facing the limiting plate. The first circuit board is installed in the avoidance groove, and the first signal receiver is electrically connected to the first circuit board and is exposed from the first arc-shaped hole.

[0015] In an embodiment of the present invention, the surface of the limiting plate facing the connecting plate is recessed with two arc-shaped grooves arranged at intervals. The bottom of the two arc-shaped grooves is provided with a plurality of arc-shaped recesses continuously arranged along its extending direction. The surface of the connecting plate facing the limiting plate is provided with positioning columns, and the end of the positioning column away from the connecting plate cooperates with one of the plurality of arc-shaped recesses of the arc-shaped groove.

[0016] In an embodiment of the present invention, a boss is further provided on the surface of the first housing. One side surface of the boss is recessed with two insertion holes arranged in parallel; the housing of the projector further includes a fixing bracket, which includes a plate body, two insertion feet connected to the same side of the plate body and arranged in parallel, and a fixing plate connected to one plate surface of the plate body and extending in a direction away from the plate body. The two insertion feet are respectively inserted and matched with the corresponding insertion holes. The plate body abuts against the surface of the first housing, and the fixing plate is used for fixedly connecting with a wall.

[0017] In an embodiment of the present invention, the housing of the projector further includes two ultrasonic rangefinders. Both of the two ultrasonic rangefinders are electrically connected to the main control board of the projector, and the two ultrasonic rangefinders are respectively arranged on two second housings of the housing of the projector.

[0018] The present invention also provides a projector, which includes an optical component, a main control board, two audio components, and the housing of the projector as described above. The optical component and the main control board are both installed in the first housing of the housing of the projector, and the two audio components are respectively arranged in the two second housings.

[0019] The housing of the projector of the present invention includes a first housing and two second housings. The second connection ends of the two second housings are respectively rotatably connected to the first connection end of the first housing, and a driving component drives the two second connection ends to rotate relative to the first connection end. When the projector is in use, the driving component works to drive the two second housings to move relative to the first housing and unfold at a certain angle, so as to facilitate the sound of the audio component of the projector to be transmitted in different directions; when the projector stops being used, the driving component works to drive the two second housings to move relative to the first housing and gather, so as to facilitate the storage of the projector. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0021] Figure 1 It is a schematic structural diagram of an embodiment of the projector of the present invention;

[0022] Figure 2 For Figure 1 It is a schematic structural diagram of an embodiment of the housing of the projector in

[0023] Figure 3 For Figure 2 It is a schematic structural diagram of an embodiment of the first housing in

[0024] Figure 4 is Figure 2 a schematic structural view of an embodiment of the second housing;

[0025] Figure 5 is Figure 3 a schematic structural view of an embodiment of the central connection section;

[0026] Figure 6 is a schematic assembly view of the installation box and the rotating shaft in the housing of the projector of the present invention;

[0027] Figure 7 is Figure 6 a cross-sectional view after the installation box and the rotating shaft are assembled;

[0028] Figure 8 is Figure 3 another view of the central connection section;

[0029] Figure 9 is Figure 2 a cross-sectional view taken along A-A;

[0030] Figure 10 is Figure 8 a schematic structural view of the limit plate;

[0031] Figure 11 is Figure 2 a schematic structural view of the installation section;

[0032] Figure 12 is a schematic assembly view of the power mechanism and the pivot shaft in the housing of the projector of the present invention;

[0033] Figure 13 is Figure 12 a schematic structural view of the power mechanism;

[0034] Figure 14 is a schematic structural view of the second angle detection device in the housing of the projector of the present invention;

[0035] Figure 15 is a schematic structural view of the fixed bracket in the housing of the projector of the present invention.

[0036] Explanation of the reference numerals in the drawings:

[0037]

[0038]

[0039] The realization, functional features and advantages of the object of the present invention will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0040] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0041] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0042] In addition, the descriptions involving "first", "second", etc. in the present invention are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions conflicts with each other or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0043] The present invention provides a housing for a projector, a part of which can be unfolded or gathered with each other, so that the volume of the entire housing of the projector can be adjusted according to requirements, that is, the housing of the projector can be unfolded when the projector is in use, and the housing of the projector can be gathered when the projector is not in use.

[0044] Please refer to Figure 1 and Figure 2 , the housing 100 of the projector includes a first housing 10, two second housings 20, and a driving component 30.

[0045] The first housing 10 is used for installing the optical component 200 and the main control board 300 of the projector 1000, that is, the interior of the first housing 10 is hollow, and the optical component 200 and the main control board 300 are both installed inside the first housing 10. The first housing 10 is at least composed of two detachable parts, which facilitates the installation of the optical component 200 and the main control board 300 inside the first housing 10.

[0046] As a carrier member, the shape of the first housing 10 can be various, such as spherical, cylindrical, cubic, etc. Preferably, the first housing 10 is arranged in a long strip shape. In this way, on the one hand, it is convenient for the installation of the optical component 200 and the main control board 300, that is, it is convenient for the layout of the optical component 200, and on the other hand, it is convenient for the production and manufacturing of the first housing 10.

[0047] The first housing 10 has a first connection end and a first free end that are oppositely arranged. That is, the two oppositely arranged ends of the first housing 10 can be defined as the first connection end and the first free end. Taking the first housing 10 being in a long strip shape as an example for illustration, the first housing 10 in a long strip shape has two ends in its length direction, one of which can be defined as the first connection end and the other can be defined as the first free end.

[0048] It should be noted that the existing optical component 200 generally includes an illumination unit, a lens unit, and an imaging unit. The illumination unit can be composed of an LED lamp and a condenser lens, and the illumination unit can also be composed of a red LED lamp, a blue LED lamp, a green LED lamp, and a condenser lens assembly, which will not be specifically limited here. The lens unit includes a condenser lens, a light homogenizer, a reflector, a polarizer, etc., and the imaging unit includes an imaging chip and an imaging lens. The imaging chip can be a DMD (Digital Micromirror Device) chip or an LCOS (Liquid Crystal Silicon).

[0049] The second housing 20 is used for installing the audio component 400 of the projector 1000. That is, the interior of the second housing 20 is hollow, and the audio component 400 is installed inside the second housing 20. The second housing 20 is at least composed of two detachable parts to facilitate the installation of the audio component 400 inside the second housing 20.

[0050] As a carrier member, the second housing 20 can be formed in many ways, such as a cube shape, a column shape, etc. Preferably, the second housing 20 is arranged in a long strip shape. In this way, on the one hand, it is convenient for the two second housings 20 to be unfolded or gathered with each other, and on the other hand, it is convenient for the production and manufacturing of the second housing 20.

[0051] The second housing 20 has a second connection end and a second free end that are oppositely arranged. That is, the two oppositely arranged ends of the second housing 20 can be defined as the second connection end and the second free end. Taking the second housing 20 being in a long strip shape as an example for illustration, the second housing 20 in a long strip shape has two ends in its length direction, one of which can be defined as the second connection end and the other can be defined as the second free end.

[0052] It should be noted that the audio component 400 generally includes a speaker and a control board electrically connected to the speaker. The control board is communicatively connected to the main control board 300 of the projector 1000. That is, the control board and the main control board 300 can be connected by wires, and the control board and the main control board 300 can be connected by Bluetooth, which will not be specifically limited here.

[0053] The second connection ends of the two second housings 20 are respectively rotatably connected to the first connection ends of the first housing 10. There are various ways to rotatably connect the second connection end and the first connection end. The two can be rotatably connected by means of a rotating shaft 40, or they can be rotatably connected by borrowing the rotating shaft 40 and a bushing assembly, or they can be rotatably connected by borrowing the rotating shaft 40 and a bushing. These will not be listed one by one here.

[0054] The driving assembly 30 is a device that provides power. The driving assembly 30 can be composed of a motor and a gear, or the driving assembly 30 can be composed of a motor, a pulley, and a belt, or the driving assembly 30 can be composed of a motor, a sprocket, and a chain. These will not be listed one by one here.

[0055] The housing of the projector 1000 of the present invention includes a first housing 10 and two second housings 20. The second connection ends of the two second housings 20 are respectively rotatably connected to the first connection ends of the first housing 10. The driving assembly 30 drives the two second connection ends to rotate relative to the first connection end. When the projector 1000 is in use, the driving assembly 30 works to drive the two second housings 100 to move relative to the first housing 100 and unfold at a certain angle, so that the sound components 400 of the projector 1000 can transmit sound in different directions; when the projector 1000 stops being used, the driving assembly 30 works to drive the two second housings 100 to move relative to the first housing 100 and gather together, so as to facilitate the storage of the projector 1000.

[0056] In some embodiments of the present invention, the first connection end and the second connection end are rotatably connected by a rotating shaft 40. Specifically, please refer to Figures 3 to 5 , the first connection end is provided with two spaced-apart relief holes 11, both of the second connection ends are provided with mounting holes 21, and the housing 100 of the projector further includes two rotating shafts 40. One ends of the two rotating shafts 40 are respectively rotatably installed in the first housing 10, and the other ends of the two rotating shafts 40 respectively pass through the corresponding relief holes 11 and are fixedly connected to the mounting holes 21 on the corresponding connecting plates 22.

[0057] The above-mentioned first connection end and second connection end are only rotatably connected by the rotating shaft 40, and it is easy to shake when they rotate relative to each other. In order to ensure that the second connection end rotates more stably relative to the first connection end, a relief groove 12 is recessed on the end face of the first connection end. The relief groove 12 has two first side walls and two second side walls 121 arranged oppositely. Both of the two first side walls are penetrated, and one of the two second side walls 121 is recessed with two spaced-apart relief holes 11 in the direction of approaching or departing from the two first side walls; both of the second connection ends are provided with connecting plates 22, and the connecting plates 22 are penetrated with mounting holes 21.

[0058] Since the second connecting plates 22 at the two second connecting ends are movably installed in the make way groove 12 and are located between the two second side walls 121, the two second connecting plates 22 are constrained on both sides of the axial direction of the rotating shaft 40. Since the two connecting plates 22 are limited by the two second side walls 121 that are oppositely arranged in the make way groove 12, the two connecting plates 22 will not generate large jitters when rotating, thereby making the two connecting plates 22 rotate more smoothly.

[0059] It is worth noting that the clearance groove 12 can be formed by a concave setting on the end surface of the first connection end; the clearance groove 12 can also be formed by two detachable parts of the first shell 10, that is, the two detachable parts of the first shell 10 both have a concave part, and the clearance groove 12 can be formed after the two detachable parts of the first shell 10 are fixedly connected; the clearance groove 12 can also be formed in other ways, which are not listed here. Similarly, the connecting plate 22 can be formed by a convex setting on the end surface of the second connection end, and the connecting plate 22 can also be formed by a plate-like structure fixedly installed on the second connection section. The connecting plate 22 can also be formed by other structural parts, which are not listed here.

[0060] Please read further Figure 6 and Figure 7 The driving assembly 30 for driving the second housing 20 to rotate relative to the first housing 10 includes a driving motor 31 and a driving gear set 32. The driving motor 31 and the driving gear set 32 ​​are both installed in the first housing 10. The output shaft of the driving motor 31 is fixedly connected to one of the two rotating shafts 40, and the driving gear set 32 ​​drives the two rotating shafts 40. The driving motor 31 can drive the other rotating shaft 40 to rotate by driving the rotating shaft 40 to which it is driven, thereby driving the two second connecting ends to rotate simultaneously, and then the two second housings 20 can be expanded or gathered together.

[0061] It should be noted that there are many types of the driving gear set 32, which can be a spur gear set, a helical gear set, or a bevel gear set, which are not listed here one by one.

[0062] Preferably, the driving gear set 32 ​​is a spur gear set, specifically, the driving gear set 32 ​​includes two first driving gears 321 and two second driving gears 322, the two first driving gears 321 are respectively mounted on the two rotating shafts 40, the two second driving gears 322 are rotatably mounted in the first housing 10, that is, they are rotatably mounted in the first housing 10 through the shaft, the two second driving gears 322 are meshed, and the two second driving gears 322 are also respectively meshed with the corresponding first driving gears 321. In this way, the rotation directions of the two rotating shafts 40 can be kept opposite at all times.

[0063] To facilitate the installation of the above-mentioned driving gear set 32, further, the driving assembly 30 further includes an installation box 33. The installation box 33 includes a bottom box 331, a middle box 332, and a top box 333 that are sequentially connected. A first cavity is formed between the bottom box 331 and the middle box 332, and a second cavity is formed between the middle box 332 and the top box 333. One ends of the two rotating shafts 40 away from the connecting plate 22 respectively pass through the top box 333 and are rotatably connected to the middle box 332, that is, the two rotating shafts 40 can be rotatably connected to the middle box 332 through bearings fixed in the second cavity. The driving motor 31 is installed between the bottom box 331 and the middle box 332, that is, the driving motor 31 is installed in the first cavity. The output shaft of the driving motor 31 can extend from the first cavity to the second cavity and be fixedly connected to the rotating shaft 40. The two first driving gears 321 are respectively engaged with the parts rotating between the middle box 332 and the top box 333, that is, the two first driving gears 321 are located in the second cavity. The two second driving gears 322 are respectively rotatably installed between the middle box 332 and the top box 333, that is, the two second driving gears 322 can be rotatably installed in the second cavity through shaft parts. With such a setting, on the one hand, it is convenient for the two rotating shafts 40 to be rotatably installed in the first housing 10, and on the other hand, it ensures that the driving gear set 32 is not interfered by external factors, making the transmission more stable.

[0064] Considering that after the driving motor 31 drives the two second housings 20 to rotate a certain angle and stops working, the two second housings 20 completely rely on the self-locking ability of the driving motor 31 to remain relatively fixed. To ensure that the two second housings 20 can remain relatively fixed when the driving motor 31 stops working. Further, the driving assembly 30 further includes a brake gear 34 and a flexible brake strip 35. The brake gear 34 is fixedly connected to the output shaft of the driving motor 31. The flexible brake strip 35 is installed in the first housing 10. Preferably, the extending direction of the flexible brake strip 35 is consistent with the axial direction of the brake gear 34. One end of the flexible brake strip 35 is fixedly connected to the first housing 10, and the other end of the flexible brake strip 35 is engaged with the tooth groove of the brake gear 34 to position the brake gear 34. With such a setting, it can be ensured that the two second housings 20 remain relatively fixed when the driving motor 31 stops working.

[0065] It should be noted that the angle at which the two second housings 20 are unfolded is realized by the driving motor 31 driving the two rotating shafts 40 to rotate. To facilitate the control of the angle at which the two second housings 20 are unfolded. The outer shell 100 of the projector is further provided with a first angle detection device 50, and the first angle detection device 50 is used to monitor the rotation angle of the second housing 20.

[0066] Specifically, a relief groove 122 is recessed in the second side wall 121. The housing 100 of the projector further includes a limiting plate 60. The limiting plate 60 is fixedly connected to the second side wall 121 and is arranged to cover the notch of the relief groove 122. A first arc-shaped hole 61 is penetrated through the limiting plate 60 along its thickness direction. The first angle detection device 50 includes a first signal transmitter 51, a first signal receiver 52, and a first circuit board 53. The first signal transmitter 51 is installed on the surface of the connecting plate 22 facing the limiting plate. The first circuit board 53 is installed in the relief groove 122. The first signal receiver 52 is electrically connected to the first circuit board 53 and is exposed from the first arc-shaped hole 61 to receive the signal sent by the first signal transmitter 51.

[0067] The first angle detection device 50 can be a Hall sensor. That is, the first signal transmitter 51 can be a magnetic disk, and the first signal receiver 52 can be a Hall semiconductor element. The first angle detection component can be a photoelectric sensor. That is, the first signal transmitter 51 can be a light emitter, and the first signal receiver 52 can be a light receiver. The first angle detection device 50 can also be other sensors capable of detecting the rotation angle, which will not be listed one by one here.

[0068] The first angle detection device 50 is electrically connected to the main control board 300 of the projector 1000. The main control board 300 of the projector 1000 can control the driving motor 31 to work according to the input first preset angle value, thereby realizing the control of the angle of the two second shells 20 unfolding, and further facilitating the user to adjust according to the needs.

[0069] Please refer to Figure 4 and Figure 10 Further, two arc-shaped grooves 62 are recessed in the surface of the limiting plate 60 facing the connecting plate 22 at intervals. A plurality of arc-shaped recesses 62a arranged continuously along its extending direction are provided at the bottom of the two arc-shaped grooves 62. A positioning post 221 is provided on the surface of the connecting plate 22 facing the limiting plate 60. The positioning post 221 can be selectively matched with one of the plurality of arc-shaped recesses 62a. With such a setting, it is convenient to position the second shell 20, making the positioning between the second shell 20 and the first shell 10 more firm.

[0070] It should be noted that the positioning post 221 is preferably made of a flexible material. With such a setting, it can not only ensure that the positioning post 221 does not interfere with the rotation of the second shell 20 relative to the first shell 10, but also can position the second shell 20 when the second shell 20 is stationary relative to the first shell 10.

[0071] Considering that the two second shells 20 may be blocked by external objects when unfolded, which may cause the driving assembly 30 to operate under overload for a long time and be damaged. In view of this, in an embodiment of the present invention, the projector 1000 further includes two ultrasonic rangefinders (not shown), both of which are electrically connected to the main control board 300 of the projector 1000, and the two ultrasonic rangefinders are respectively disposed on the two second shells 20 of the housing of the projector 1000.

[0072] When the ultrasonic rangefinder detects that the distance between the obstacle and the second shell 20 is greater than the warning distance, the main control board 300 controls the driving assembly 30 to work to drive the two second shells 20 to rotate and unfold relative to the first shell 10; when the ultrasonic rangefinder detects that the distance between the obstacle and the second shell 20 is equal to the warning distance, the main control board 300 controls the driving assembly 30 to stop working or controls the driving assembly 30 to drive the two second shells 20 to rotate and gather relative to the first shell 10. It should be noted that the warning distance can be set according to the needs of the user, which can be 5mm, 4mm, 3mm, 2mm, etc., and no specific limitation is made here.

[0073] In some embodiments of the present invention, please refer to Figure 2 , the first shell 10 includes an installation section 13 and a pivoting section 14. The inside of the installation section 13 is hollow and includes at least two detachably connected parts. Similarly, the inside of the pivoting section 14 is hollow and includes at least two detachably connected parts.

[0074] The installation section 13 is for installing the optical component 200 and the main control board 300 of the projector 1000. One end of the installation section 13 is rotatably connected to the pivoting section 14, the other end of the installation section 13 forms a first free end, and the end of the pivoting section 14 away from the installation section 13 forms a first connection end; the first shell 10 further includes a power mechanism 15, and the power mechanism 15 is installed in the pivoting section 14 to drive the installation section 13 to rotate relative to the pivoting section 14.

[0075] There are various ways to rotatably connect the installation section 13 and the pivoting section 14. For example, a bearing is installed on the installation section 13, and the inner ring or outer ring of the bearing is fixedly connected to the installation section 13, and a bushing sleeved with the outer ring of the bearing or a shaft inserted into the inner ring of the bearing is provided on the pivoting section 14. Again, a rotating shaft 40 or a bushing is provided on the installation section 13, and a bushing or a rotating shaft 40 is provided on the pivoting section 14, and the installation section 13 and the pivoting section 14 are rotatably connected through the cooperation of the rotating shaft 40 and the bushing. Obviously, there are many other ways to rotatably connect the installation section 13 and the pivoting section 14, and they will not be listed one by one here.

[0076] Preferably, please refer to Figure 8 , Figure 11 and Figure 12, a fixing hole 131 is provided through one end of the installation section 13 adjacent to the pivoting section 14; a rotating hole 141 is recessed at one end of the pivoting section 14 adjacent to the installation section 13; the first housing 10 further includes a pivot shaft 16, the pivot shaft 16 is fixedly connected to the fixing hole 131, and the pivot shaft 16 is rotatably connected to the rotating hole 141; the power mechanism 15 is installed on the pivoting section 14, and it applies a force to the pivot shaft 16 to drive the pivoting section 14 to rotate relative to the installation section 13, so that the rotational connection between the installation section 13 and the pivoting section 14 can be realized.

[0077] Considering the stability when the pivoting section 14 rotates relative to the installation section 13, further, a relief groove 132 is recessed at one end of the installation section 13 adjacent to the pivoting section 14. The relief groove 132 has two first groove walls and two second groove walls 133 arranged oppositely. The two first groove walls are provided through, and fixing holes 131 are recessed in both second groove walls 133; an installation plate 142 is provided at one end of the pivoting section 14 adjacent to the installation section 13, and a rotating hole 141 is provided through the installation plate 142 along its thickness direction; both ends of the rotating shaft 40 are fixedly connected to the fixing holes 131 on the corresponding second groove walls 133, and the middle part of the rotating shaft 40 is rotatably connected to the rotating hole 141. Since the connecting plate 22 is clamped by the two second groove walls 133, the connecting plate 22 is restricted in its thickness direction, so that the connecting plate 22 can only rotate relative to the pivoting section 14, making the rotation of the connecting plate 22 smoother.

[0078] It should be noted that the relief groove 132 can be formed by recessing from the end face of one end of the installation section 13; the relief groove 12 can also be formed by two detachable parts of the installation section 13, that is, both detachable parts of the installation section 13 have recesses. After the two detachable parts of the installation section 13 are fixedly connected, the relief groove 132 can be formed; the relief groove 132 can also be formed in other ways, which will not be listed one by one here. Similarly, the installation plate 142 can be formed by protruding from a part of the end face of one end of the pivoting section 14, the installation plate 142 can also be a plate-like structure fixedly installed at one end of the pivoting section 14, and the installation plate 142 can also be formed by other structural parts, which will not be listed one by one here.

[0079] Please refer to Figure 12 and Figure 13 , the above-mentioned power mechanism 15 includes a power motor 151, an input gear 152, a transmission gear set 153 and an output gear 154. The output shaft of the power motor 151 is fixedly connected to the input gear 152, the output gear 154 is sleeved on the pivot shaft 16, and the transmission gear set 153 connects the input gear 152 and the output gear 154 for transmission.

[0080] When the power motor 151 works, it can drive the input gear 152 to rotate together. The input gear 152 drives the output gear 154 to rotate through the transmission gear set 153. Since the output gear 154 is fixedly connected to the pivot shaft 16, the pivot shaft 16 will rotate together with the output gear 154, thereby driving the mounting plate 142 to rotate relative to the two second groove walls 133.

[0081] Furthermore, the power mechanism 15 further includes a box body 155. The box body 155 is at least formed by splicing two detachably connected parts. The box body 155 is fixedly installed in the pivot section 14. The box body 155 can be fixedly installed in the pivot section 14 by connecting parts such as screws, buckles, and rivets. Through holes 155a corresponding to the rotation holes 141 on the corresponding side are respectively provided through both opposite side walls of the box body 155; the input gear 152, the transmission gear set 153, and the output gear 154 are all rotatably installed in the box body 155. The power motor 151 is fixedly installed on the surface of the box body 155, and the output shaft of the power motor 151 extends into the box body 155 and is fixedly connected to the input gear 152.

[0082] The setting of the box body 155 confines the input gear 152, the transmission gear set 153, and the output gear 154 in a relatively enclosed space, so that the input gear 152, the transmission gear set 153, and the output gear 154 can be avoided from being interfered by external factors, thereby making the transmission between the input gear 152, the transmission gear set 153, and the output gear 154 smoother and more stable.

[0083] Furthermore, the output gear 154 includes an output tooth disc and an output connecting shaft arranged through the output tooth disc. Both ends of the output connecting shaft are respectively rotatably connected to the through holes 155a on the corresponding side. A square hole (not marked) for cooperating with the pivot shaft 16 is provided through the output connecting shaft along its axial direction. Such a setting facilitates the rotatable installation of the output gear 154 in the box body 155. At the same time, the square hole on the output connecting shaft cooperates with the pivot shaft 16, and also avoids the problem of the pivot shaft 16 slipping relative to the output connecting shaft.

[0084] Furthermore, the output shaft of the power motor 151 and the pivot shaft 16 are arranged perpendicular to each other; the input gear 152 is a bevel gear; the transmission gear set 153 includes a first transmission gear 1531 and a second transmission gear 1532. The first transmission gear 1531 includes a transmission bevel gear disc 1531a and a transmission straight gear disc 1531b arranged coaxially. The transmission bevel gear disc 1531a meshes with the input gear 152, and the second transmission gear 1532 meshes with the transmission straight gear disc 1531b and the output gear 154 respectively.

[0085] It should be noted that the included angle formed between the installation section 13 and the pivoting section 14 is controlled by the rotation angle of the drive assembly 30. For the convenience of controlling the included angle formed between the installation section 13 and the pivoting section 14, please refer to Figure 5 、 Figure 11 and Figure 14 . The housing 100 of this projector further includes a second angle detection device 70, and this second angle detection device 70 is used to monitor the rotation angle of the pivoting section 14.

[0086] Specifically, a second arc-shaped hole 134 is recessed in the second groove wall 133; the second angle detection device 70 includes a second signal transmitter 71, a second signal receiver 72, and a second circuit board 73. The second signal transmitter 71 is installed on the surface of the mounting plate 142 facing the arc-shaped hole, the second circuit board 73 is installed inside the installation section 13, and the second signal receiver 72 is electrically connected to the circuit board and is exposed from the second arc-shaped hole 134.

[0087] The second angle detection device 70 can be a Hall sensor, that is, the signal transmitter can be a disk, and the receiver can be a Hall semiconductor element. The second angle detection component can be a photoelectric sensor, that is, the signal transmitter can be a light emitter, and the receiver can be a light receiver. The second angle detection device 70 can also be other sensors capable of detecting the rotation angle, which will not be listed one by one here.

[0088] The second angle detection device 70 is electrically connected to the main control board 300 of the projector 1000. The main control board 300 can control the operation of the power motor 151 according to the input second preset angle value, thereby realizing the control of the size of the angle at which the installation section 13 expands relative to the pivoting section 14, and further facilitating the user to adjust according to requirements.

[0089] Please refer to Figure 8 and Figure 15 . Considering that the projector 1000 is usually hung on the wall, a boss 143 is further provided on the surface of the pivoting section 14, and two insertion holes 144 arranged in parallel are recessed on one side surface of the boss 143; the housing 100 of this projector further includes a fixing bracket 80, and this fixing bracket 80 includes a plate body 81, two insertion feet 82 connected to the same side of the plate body 81 and arranged in parallel, and a fixing plate 83 connected to one plate surface of the plate body 81 and extending in a direction away from the plate body 81. The two insertion feet 82 are respectively inserted and matched with the corresponding insertion holes 144. The plate body 81 abuts against the surface of the pivoting section 14, and this fixing plate 83 is used for fixed connection with the wall. With such a setting, the fixed installation of the projector 1000 is convenient.

[0090] Please refer to Figure 1, the present invention also provides a projector 1000, which includes an optical component 200, a main control board 300, two audio components 400, and a housing of the projector 1000. The optical component 200 and the main control board 300 are both installed in the first housing 10 of the housing of the projector 1000, and the two speakers are respectively disposed in the two second housings 20 of the housing of the projector 1000. For the specific structure of the housing of the projector 1000, refer to the above embodiments. Since the projector 1000 adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated here one by one.

[0091] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structural transformation made by using the content of the specification and drawings of the present invention under the inventive concept of the present invention, or direct / indirect application in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A housing of a projector, characterized in that, The housing of the projector comprises: A first housing, used for mounting the optical components and the main control board of the projector, wherein the first housing has a first connecting end and a first free end which are arranged opposite to each other; There are two second shells, each for mounting the audio component of the projector, the second shells having a second connecting end and a second free end which are oppositely arranged, and the second connecting end of the second shell is rotatably connected to the first connecting end of the first shell; A driving assembly, used for driving the two second connection ends to rotate relative to the first connection end, so that the two second shells rotate relative to the first shell to expand or gather; The end surface of the first connecting end is concavely provided with a clearance groove, and the clearance groove has two first side walls and two second side walls which are arranged opposite to each other, the two first side walls are both penetrated, and one of the two second side walls is concavely provided with two clearance holes which are arranged at intervals in the direction in which the two first side walls are close to or away from each other; A connecting plate is protruding from the second connecting end, and the connecting plate is movably installed in the giving way groove and located between the two second side walls. The connecting plate is also penetrated by a mounting hole; The housing of the projector further comprises two rotating shafts, one end of each of the rotating shafts is rotatably mounted in the first housing, and the other end of each of the rotating shafts passes through corresponding clearance holes and is fixedly connected to corresponding mounting holes on the connecting plate; The driving assembly is installed in the first housing, and includes a driving motor, two first driving gears and two second driving gears. The output shaft of the driving motor is fixedly connected to one of the two rotating shafts. The two first driving gears are respectively installed on the two rotating shafts. The two second driving gears are rotatably installed in the first housing. The two second driving gears are meshed with each other, and the two second driving gears are also respectively meshed with the corresponding first driving gears. The shell of the projector also includes two ultrasonic rangefinders, both of which are electrically connected to the main control board of the projector, and the two ultrasonic rangefinders are correspondingly arranged on two second shells of the shell of the projector.

2. The housing of the projector according to claim 1, characterized in that, The driving assembly also includes an installation box, which includes a bottom box, a middle box and a top box connected in sequence, the two rotating shafts respectively pass through the top box and are rotatably connected to the middle box, the driving motor is installed between the bottom box and the middle box and is connected to one of the rotating shafts, and the two first driving gears and the two second driving gears are located between the middle box and the top box.

3. The housing of the projector according to claim 1, characterized in that, The driving assembly also includes a brake gear and a flexible brake strip. The brake gear is fixedly connected to the output shaft of the driving motor. The flexible brake strip is installed in the first shell, one end of which is fixedly connected to the first shell, and the other end of which cooperates with the tooth groove on the brake gear to impose constraints on the brake gear.

4. The housing of the projector according to claim 1, characterized in that, The second side wall is concavely provided with an avoidance groove, and the housing of the projector further includes a limit plate, the limit plate is used to cover the notch of the avoidance groove, and a first arc-shaped hole is penetrated through the limit plate along the thickness direction; The housing of the projector further includes a first angle detection device, which includes a first signal transmitter, a first signal receiver, and a first circuit board. The first signal transmitter is installed on the surface of the connecting plate facing the limiting plate. The first circuit board is installed in the avoidance groove, and the first signal receiver is electrically connected to the first circuit board and exposed from the first arc-shaped hole.

5. The housing of the projector according to claim 4, characterized in that, On the surface of the limiting plate facing the connecting plate, two arc-shaped grooves are recessed at intervals, and a number of arc-shaped recesses arranged continuously along their extending direction are provided at the bottoms of the two arc-shaped grooves; Positioning columns are provided on the surface of the connecting plate facing the limiting plate, and the end of the positioning column away from the connecting plate is matched with one of the arc-shaped recesses of the arc-shaped groove.

6. The housing of the projector according to claim 1, characterized in that, A boss is further provided on the surface of the first housing, and two parallel plugging holes are recessed on one side surface of the boss; the housing of the projector further includes a fixing bracket, which includes a plate body, two parallel plugging feet connected to the same side of the plate body, and a fixing plate connected to one plate surface of the plate body and extending in a direction away from the plate body. The two plugging feet are respectively plugged and matched with the corresponding plugging holes. The plate body abuts against the surface of the first housing, and the fixing plate is used for fixedly connecting with the wall body.

7. A projector, characterized in that, It includes an optical component, a main control board, two audio components, and the housing of the projector according to any one of claims 1-6. The optical component and the main control board are both installed in the first housing of the projection housing, and the two audio components are respectively arranged in the two second housings.

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